Chat bubbles and a tab titled ChatGPT are the clearest visual tells, and Docognito removes both. A sudden burst of pasted text, a long pause before you answer, and eyes that keep drifting to a second window are behavioural tells that sit entirely outside what any extension can change.
The visual tells: what a screen shows
A ChatGPT or Claude window has a specific shape, and most people who use a computer regularly have seen it somewhere, even without using either product themselves. Alternating message bubbles, a composer box fixed to the bottom of the screen, and a tab title that says exactly what the site is, all of it reads instantly to anyone glancing over.
These are the tells a disguise is built to remove, because they are also the ones a passing glance actually registers. A page redrawn as a document editor, with a title bar and a page layout instead of bubbles, does not trigger the same instant recognition.
A small extension icon sitting in the browser toolbar is a quieter version of the same category, though a much weaker one. Recognising it takes specific familiarity with what that particular icon looks like, which is a narrower audience than the number of people who recognise a chat bubble layout on sight, and Chrome lets that icon be tucked out of the toolbar entirely if it matters to you.
The behavioural tells: what people notice
The second category has nothing to do with what is on the screen. It is what a colleague notices about how you are acting while you look at it. A pause before answering a question that should have been quick. Eyes that drift to a second monitor or a second window rather than staying on the call. A reply that arrives fully formed, evenly worded, and slightly more polished than the rest of the conversation has been.
None of these come from the page. They come from the gap between reading a generated answer and speaking it as your own, and that gap exists whether the page looks like a chatbot or a document.
Why pasted text is the loudest tell
Typed text and pasted text move differently, and most people register the difference without being able to name it. Typing has a rhythm, small pauses, occasional corrections, a pace that varies with the sentence. Paste a paragraph in one motion and none of that shows up, because the whole block appears between one frame and the next.
On a shared screen, that difference is easy to catch even without watching closely, because it interrupts the pattern the viewer has been passively following. It is also one of the tells no visual disguise reaches, since it is about how the text arrived, not what the page around it looks like.
A tab that does not match the topic
A shared tab with nothing to do with the meeting's stated topic is its own tell, separate from what that tab looks like. A page unrelated to whatever is actually being discussed reads as odd on its own terms, because the content does not fit the conversation happening around it, disguise or not.
This is one tell a document disguise can create by accident rather than remove. A page that always reads as the same blank, generically titled document, call after call, can start to look like a prop rather than real work to anyone who notices the pattern repeat. Giving the document a title that matches whatever the call is actually about closes that gap, and it costs nothing more than editing the title the same way you would in any real document editor.
What Docognito actually removes from that list
Docognito changes the page, the browser tab title and the tab icon, which together cover the shape a glance recognises: the bubble layout, the composer, the name in the tab. What it does not touch is anything about how you behave while the page is open, including the pace at which text appears, how long you pause before speaking, or where your eyes go during a call.
A closer look still finds the address bar no matter what the page shows
the address bar, which still reads claude.ai or chatgpt.com, and someone deliberately reading it rather than glancing past it will find that out regardless of how convincing the page underneath looks.
Reducing the tells a disguise cannot reach
Paste in smaller pieces
Bringing text in a few lines at a time reads far closer to typing than one large block appearing at once.
Give yourself a beat before answering, not a silence
A short, natural pause reads as thinking. A long, blank one reads as waiting on something.
Keep your eyes where the conversation is
Checking a second window repeatedly is one of the easiest patterns for someone across a call to notice.
The tell Docognito fixes, and the one only you can
Treat the visual and the behavioural tells as two separate problems, because they need two separate fixes. Docognito handles the first one: the page, the tab title and the icon that a glance actually catches. The second one is entirely on you, pacing, pauses, where you look, and no extension changes any of it.